Ucyclyd Pharma, Inc. informed healthcare professionals of the detection of particulate matter in the Ammonul Injection product. This particulate matter may impact the safe use of Ammonul. To ensure optimal patient care, healthcare providers are being instructed to use a MilIex Durapore GV 33 mm Sterile Syringe Filter (0.22 µm ) during the admixture process when injecting Ammonul into the 10% Dextrose IV bag. Since this particulate matter may not be readily seen on visual inspection, a filter must be employed in all cases regardless of whether particulate matter is seen in the vial. Testing has confirmed the removal of this specific particulate when using this filter to admix Ammonul.